H15EDGKNM-3.5 | 3.5mm Pitch Pluggable PCB Terminal Block Connector

H15EDGKNM-3.5 | 3.5mm Pitch Pluggable PCB Terminal Block Connector

Core Design Analysis

This terminal design perfectly solves two key problems: wiring efficiency and connection reliability.

1. Screwless Wiring Mechanism (Improved Efficiency and Reliability)

Operation: There is typically an orange or black operating lever (push button).  To wire, press the lever with a screwdriver or your finger to open the internal spring clip, insert the stripped wire, and then release the lever. The spring clip will then firmly clamp the wire.

Internal Structure: The core is a highly elastic, corrosion-resistant copper alloy spring clip (such as phosphor bronze). Its design ensures a constant clamping force on the wire and provides vibration resistance and anti-loosening properties.

1.Type and Pole

Type: Pcb Pluggable Screw Terminal Block

Pole:

2.Material  Of  Pluggable Terminal Block

Advantages:

Fast: Wiring speed is several times faster than traditional screw terminals.

Vibration-resistant: The continuous pressure of the spring effectively resists loosening caused by vibration, ensuring high reliability.

No risk of screw loosening: Eliminates the problem of screws falling out or being forgotten to be tightened.

Suitable for various types of wires: Compatible with wires with crimp terminals, stranded wires, and solid core wires.

3.Electrical  Of  Pluggable Terminal Block

4.Mechanical  Of  Pluggable Terminal Block

Flange mounting holes on both sides (for increased mechanical strength)

Core function: To distribute stress.

Working principle:

Electrical connection: The terminal pins are soldered to the PCB, primarily responsible for electrical conductivity.

Mechanical connection: When wires are inserted, removed, or subjected to external forces such as pulling or shaking, the resulting mechanical stress acts directly on the terminals. Without flange mounting, all of this stress would be borne entirely by the solder joints on the PCB, which can easily lead to solder joint cracking and PCB copper foil delamination over time or under excessive force.

Stress transfer: The terminal body is securely locked onto the PCB using screws/rivets through the mounting holes on both flanges.  In this configuration, the mechanical stress is primarily borne by the flange mounting points and the robust terminal body, while the solder joints are only responsible for electrical connection. This significantly improves the reliability and lifespan of the entire connection system.

5.Dimensions

6.Advantages 

☑ Adapt to multi-type sockets, device design is highly flexible
☑ Keying requirements can be met
☑ Universal installation method, suitable for various situations

7.Application  Of  Pluggable Terminal Block

1.Motion controller    2.Three-phase power meter   3.Microcomputer protection device  4.Electric equipment

5.Automation equipment  6.Security equipment  7.Internet of things equipment

8.Package  Of  Pluggable Terminal Block

We choose the high quality and safe packaging material to make sure  your order  won't  be damaged during delivery.

These trade terms are acceptable:EXW,FOB,CFR,CIF.